Magnetostriction measurements, made with an interferometric dilatometer at room temperature, are reported for Bi, Sb, W, Nb, Mo, Ta, and V. The measurements were made using magnetic fields to 30 kG on high‐purity single crystals. The results for Bi agree qualitatively with those of Kapitza and Shoenberg. Generally, the Sb results were smaller. The values obtained for the transition elements were the smallest of those measured, but quantitative information on their magnetostrictive properties was obtained.